Car-coupling.



G. DIETZ.

CAR COUPLING.

APPLIGATION FILED JAN. 1s, 190e.

Patented Dec. 15, 1908A UNITED STATES FTEN T OFFICE.

CHARLES DIETZ, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO ISAAC PRICE, OFA

CLYDE, ILLINOIS.

CAR-COUPLING.

Specification of Letters Patent.

Patented Dec. 15, 1908.

Application led January 18, 1908. Serial No. 411,407.

To all 'whom it may concern.'

Be it known that I, CHARLES Dln'rz, a citizen ofthe United States, residing at Chicago,A in the county of Cook and State of Illinois, have invented certain new and luseful Imrovements in Car-Couplers, of which the ollowinv is a specification.

vThe object of my invention is to provide an improved car coupler.

More particularly 4it is my object to provide a coupling head of the Master Car Builders type that shall have means to hold the knuckle in a desired position.

Still another object is to rovide a fastening device for holding a leaf- 'ke member in a s ot.

My invention resides in means `for carryingtion. Fig. 5 is asection taken on the line 5 `5 of Fig. 4, looking in the direction ofthe arrow.

vThe coupler head 17 has the general form:-

of the Master Car Builders `type and is carried by the draw-bar 16, which passes under the end sill 15 of the car. The knuckle 18 is ivoted in the cou ling head by the bolt 19.

'- he coupling hea( 17'has a projection 20,

which overhangs the knuckle and constitutes a cam, the purpose of which will be presently explained. The' knuckle 18 has cast integrally therewith on its upper surfacea lug 21 with a ilat slot extending therethrough. A leaf spring 22 is bent in the shape clearly indicated 1 n the drawings, one end 23 being adapted to pass through the slot in the lug 21. A slit 26 is-cut part way across near the end oi the leaf s ring, as indicated by the reference numera 26 and the part 24 beyond the slit 26 is. bent slightly to one side. The plained later.' The other extremity of the eaf spring 22 is bent slightly, as indicated by the reference numeral 25.

When the coupler is engaging an o posed coupler on another car the knuckle wi l have the position shown in full lines in Fig. 1. At

aims taken in donnee- Fig. 4 shows a modificapurpose of this will be eX- this time the extremity 25 of the leaf spring 22 will press with a moderate degree of force against one side of the .cam 20. When the knuckle is unlocked and opened the end 25 of the leaf spring will sweep across the cam face 20 over the projecting part thereof, thus bending the leaf spring 22 and. utting it on a greater tension. But when t knuckle is swung wide open, as indicated by the dotted lines-1n Fig. 1, the end 25 ofthe leaf spring will go past the projecting part'of the cam 20 to the other side ,thereof and the spring 22 will be relaxed somewhat from the extreme compression which it experienced just as the part 25 passed over the extreme rojecting' part ofy the cam 2Q. lThus it w` l be seen that to shift the knuckle from one extreme position to the other necessitates successive compression and expansion of the .spring 22. It therefore follows that the spring will tend to hold the knuckle in either of its two extreme positions.

The part 24 is' bent aside, as described, be- .fore the s rin 22 is inserted in the projecting lug 21.l IllVhiIe retaining the elastlcity to resume thebent position, it may be straightened up enou h to sli the end 23 of the eaf spring throug the s ot in the lug 21. As soon as'the art 24 rojects ,clear through the end of the s ot it W31 be sna ped over to one side and revent-the spring from being withdrawn. lIt is obvious that this structure for retaining the spring 22 lin place might be emplcyed in other connections.

n Figs. 4 and 5 I have lillustrated-a modiicatien b which my invention may be aplplied to Ao d coupling heads. In this modi cation the cam 28 corresponding to the cam 20 in Fig. 1 is made detachable. It hangs down roma plate 27 which is bolted in place by the pivot in. -'A tongue 29 reaches across the top ,ace of the coupler head and ends in a depression 29a thereon, thereby preventing rotation ofthe plat'e 27. Thus it will be seen that by applying this plate 27 to old coupling heads and substituting a knuckle with my spring attached thereto, my invention can be employed without substitution of any other parts,

I claim: 1. A car coupler having a pivoted knuckle, a leaf spring for holding the knuckle in position, a slotted member through which the spring projects, and a transverse slit extendend of the spring, the

. a leaf spring ing partly across oneside of the projecting part beyond the slit being bent to one side;

2. A car coupler having a pivoted knuckle, a lug projecting upwardly from the top of said knuckle and having a vertical slot through it, a leaf spring having one end fastened in saidislort, and a cam on the coupler adapted` to engage the other end of said spring.

3. A car coupler having a pivoted knuckle, a leaf spring lying on top of said knuckle, means for securing one end of said spring in' fixed yrelation to the knuckle, and a cam on the coupler vprojecting 'partiallyover the said knuckle, sald cam being adaptedv to engage the other end of said spring.

4. A car ooulple'r having a pivoted knuckle,

ying on top of said knuckle, l1

relation to the knuckle, a detachable inem- V ber adapted to fit -over the coupler and having a cam projecting above the knuckle, said cam being adapted to engage the other end of said spring, and a knuckle pin'pivotally uniting the coupler 4and the knuckle and also passing through :said member.

5. A car coupler having a pivoted knuckle, a leaf spring attached by one endto said knuckle, and a detachable co-acting cam on the coupler, Said earn having a hole therein through Which the knuckle pin passes vand also having non-rotative engagement with the coupler.

v,CHARLES DIEIZ.` Witnesses z" EDYTHE M. `ANnERsoN, FLORENCE FLommr.. 

